{"product_id":"hi904d-02","title":"HANNA HI 904D-02 Karl Fischer Coulometric Titrator with Diaphragm Generator - 1ppm to 5%","description":"\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cp\u003e\u003cbr\u003e• More precise. better accuracy than other water content analysis methods\u003cbr\u003e• Measures 1ppm to 5%\u003cbr\u003e• Low sample volume and preparation is easy\u003cbr\u003e• Can be used for liquids or solids*\u003cbr\u003e• Specific to water – independent of presence of volatile substances\u003cbr\u003e• Closed reagent handling system with integrated diaphragm air pump maintains a dry environment\u003cbr\u003e• Easily transfer methods and results (of drift analysis or titrations) to PC via the USB port\u003cbr\u003e• Choose from diaphragm or diaphragm-less generator cells. depending on the specific application\u003cbr\u003e• Compact shape will fit on any laboratory bench (not composed of many modules that can take up space)\u003cbr\u003e\u003cbr\u003e Introducing the newest addition to Hanna’s family of Titration Systems: the HI 904 Coulometric Karl Fischer Titrator. The HI 904 excels at determining water content in\u003cbr\u003e extremely small concentrations (1 ppm to 5%) and requires no titrant. instead using a generator electrode.\u003cbr\u003e A pulsed DC current is applied to the generator electrode and results in oxidation of free iodide to iodine (the titrant) at the platinum anode. Alcohol. sulfur dioxide and base\u003cbr\u003e (pyridine or imidazole) present in the reagents react to form a salt that is oxidized by the generated iodine. This reaction consumes water present in the cell in a 1:1 ratio\u003cbr\u003e (iodine:water). Once all of the water is consumed. the excess iodine is detected using a bilvoltammetric detector electrode and signals the end of the titration. The result is\u003cbr\u003e calculated from the amount of current applied to complete the reaction and the length of time that the generator electrode is active (A•s. or Coulombs).\u003c\/p\u003e\n\u003cdiv\u003e\u003cstrong\u003eProduct Manuals\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cimg src=\"http:\/\/www.hannainst.com\/usa\/images\/icon-pdf.gif\" alt=\"\" width=\"20\" height=\"22\" align=\"absmiddle\" border=\"0\"\u003e  Manual: \u003ca title=\"Download Product Manual\" href=\"http:\/\/www.hannainst.com\/manuals\/904_man_16_09_2013.pdf\" target=\"_blank\"\u003eDownload\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecification :\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRange\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e1 ppm to 5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e1 ppm (0.0001%)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e1%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResult Units\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e%. ppm. ppt. mg\/g. µg\/g. mg. µg. mg\/mL. µg\/mL. mg\/pc. µg\/pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSample Type\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eLiquid or Solid* (external diss.\/extract.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTitration Vessel\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eOperating volume between 100-200 mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReagent Handling System\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eSealed system with intergrated diaphragm air pump and beaker adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGenerator Cell\u003c\/td\u003e\n\u003ctd\u003eConfiguration\u003c\/td\u003e\n\u003ctd\u003eFritted or Fritless (w\/ or w\/o diaphragm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGenerator Cell\u003c\/td\u003e\n\u003ctd\u003eDosing\u003c\/td\u003e\n\u003ctd\u003e50-400 mA pulsed DC current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDetermination\u003c\/td\u003e\n\u003ctd\u003ePre Titration Conditioning\u003c\/td\u003e\n\u003ctd\u003eAutomatic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDetermination\u003c\/td\u003e\n\u003ctd\u003eBackground Drift Connection\u003c\/td\u003e\n\u003ctd\u003eAutomatic; User Selectable Value\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDetermination\u003c\/td\u003e\n\u003ctd\u003eEndpoint Criteria\u003c\/td\u003e\n\u003ctd\u003eFixed mV persistence. relative drift stop. or absolute drift stop\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDetermination\u003c\/td\u003e\n\u003ctd\u003eDosing\u003c\/td\u003e\n\u003ctd\u003eDynamic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDetermination\u003c\/td\u003e\n\u003ctd\u003eResult Statistic\u003c\/td\u003e\n\u003ctd\u003eMean. Standard Deviation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrode\u003c\/td\u003e\n\u003ctd\u003eType\/Connection\u003c\/td\u003e\n\u003ctd\u003eDual patinum pin. polarization electrode \/ BNC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrode\u003c\/td\u003e\n\u003ctd\u003ePolarization Current\u003c\/td\u003e\n\u003ctd\u003e1. 2. 5.10.15. 20. 30 or 40 µA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrode\u003c\/td\u003e\n\u003ctd\u003eVoltage Range\u003c\/td\u003e\n\u003ctd\u003e2 mV to 1000 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrode\u003c\/td\u003e\n\u003ctd\u003eVoltage Resolution\u003c\/td\u003e\n\u003ctd\u003e0.1 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrode\u003c\/td\u003e\n\u003ctd\u003eAccuracy (@25°C\/77°C)\u003c\/td\u003e\n\u003ctd\u003e±0.1 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGraphic Display\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e5.7 (320 x 240 pixel) color LCD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTitration Methods\u003c\/td\u003e\n\u003ctd\u003eAdditional Specification\u003c\/td\u003e\n\u003ctd\u003eUp to 100 (standard and user)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Storage\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eUp to 100 titration and drift rate reports can be stored\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":4857292549,"sku":"HI904D-02","price":102960.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0931\/0956\/products\/hi904_2-1-400-1_2015.jpeg?v=1443495621","url":"https:\/\/acornsci.co.nz\/products\/hi904d-02","provider":"Acorn Scientific","version":"1.0","type":"link"}